I suggest rerouting the hose to eliminate the sag. It should not sag between the highest loop point and the plumbing connection. The placement of the T-connection contributes to the sagging. As per the answer in the plumbing section, the correct placement is on the line coming down from the left-side sink bowl, positioned so that it's upward and higher than the P-trap.

yes, it is a good place and time to raise this, plllog. An air gap gives a better warning signal than a high loop. If any drain blockage occurred (or backup), the dishwasher is the first place where contaminated water would pool, unless there's a hose high-looped or a physical air gap. For the sake of brevity I'll leave out many of the potentially lethal consequences and possible scenarios. In other places on the internet, you can read a few sentences that deal with unlikely occurrences, that might shock you. A cheap valve in a Miele dishwasher will not prevent contamination from seeping in, if things back up. A hose going straight from the dishwasher floor to the sink drain connection would be the first place for contaminated water to flow through, (because it is the lowest point), but not if your hose were raised to "loop to go high" (because it is no longer the lowest point). The hose being raised is a physical separation. That AND a flapper valve are good to have, as a team of two safeguards, far more guaranteed to do the job than a flapper valve alone. When calamities happen, you want your drain system _not_ to be a vector carrying bacteria to your plates cutlery and glasses. When pandemics occur, the community's common sewer and drain systems carry bacteria to new households. After you go away on vacation, when you come back your dishwasher might look clean but be contaminated : between the high loop method and the air gap method, the latter will give you more warning signals. Other advantages apply. So, in the many most-unlikely scenarios, air gaps are better.

Instead of trying to argue the point with my, why don't you look it up in your own code? Here it is from the State of Virginia Plumbing Code; 802.1.6 DOMESTIC DISHWASHING MACHINES Domestic Dishwashing machines shall discharge into an airgap or air break in a standpipe or waste receptor in accordance with section 802.2, or discharge into a wye branch fitting on the tailpiece of the sink or into the dishwasher inlet connection of a food waste grinder. The waste line of a domestic dishwashing machine discharging into a sink tailpiece or food waste grinder shall connect to a deck mounted air gap or the line shall rise and be securely fastened to teh underside of the sink rim or counter. Now for your enlightenment, a wye branch on the tailpiece or a dishwasher inlet port on a food waste grinder are both indirect waste connections.

Which manufacturer? Call their 1-800 number. Ask them about shortening the length. As a general rule, it is good to send DW drain hose high not low, sending it upwards towards the Air gap. That is what is required when Air Gaps are absent, and that is the definition of High Loop: sending the hose upwards to then come down to the connection to the drain pipe. However, worry not. Talk to the DW manufacturer. Counterclockwise, clockwise: not a concern. Talk to your DW manufacturer about: "... worried that water will sit in the drain hose if it isn't looped correctly and eventually cause problems ie mold, odor, or whatever. ..." Post your findings and let discussion begin.