Try rocks. I’ve had a similar situation with a tall sans with poor roots taking ages to stabilise after repotting to a pumice bark mix. Was told not to worry but it’s a pain (as you know) as sometimes you just have to move the plant (when watering or cleaning etc) and then it wobbles all over the place. Can’t be good for it. So I have an assortment of rocks on the surface propping it up. Get in the way of watering a bit but they do help. Do you have drainage in your pot?

I have my sans in a custom mix with pine bark fines and they are thriving and my mix drains well why would anyone say bark is bad for sans? the problem is you are watering on a schedule you can forget sans in the winter ESPECIALLY in low light conditions less light always means less water i had NO noticable growth on my sans in low light, so while they survive in those conditions, they will not thrive in those conditions i moved mine to a sunny location, water less than once a month in the winter, water more often in the growing season AND like someone else mentioned i use DynaGro foliage pro spring to September they shot up like crazy and sent me pups i keep all but one in clay pots I have a wood burning stove in the winter … my home is dry … i still don't water my sans more than once a month in the winter and mine are in a south window … for low light i would wait two months to water them i just planted my new Sayuri in the gritty mix. how can anyone think the gritty mix can’t hold the weight of the plant???? Shes the tallest sans i have right now and shes sturdy in the grit If you arent comfortable with the gritty mix, use Als 5:1:1 mix it has superior drainage and all my potted annuals absolutely thrived in it i buy reptibark since i can’t find pine bark fines in my area When i do water, i water thoroughly so as not to leave dry air pockets in my pots so in essence the roots are getting a good drench but drainage is the key no perched water

Your personal preference, but I see many of these let grow until they fill up container. And let them be for years. As for division, there is no rush - and plants are generally better off if they are let to mature more. Many ppl make mistake of separating pups when too young.

Sorry, that's not really even variegation for a Sans, it's the normal look for ordinary Snake plants, botanical name Sansevieria, likely the common variety called Trifasciata. The link I provided shows pix of what I mean, that it's a stripe on the edge, not really regarded among Sans growers as variegation. Yes, their roots tend to be orange, perfectly normal & healthy. Roots to remove would be dry, brittle &/or crunchy (indicating the roots are dead). See these roots, kind of orange, very healthy (from a recent rescue I did). https://worldofsucculents.com/how-to-grow-and-care-for-sansevieria/ The goods news is these are tough, sturdy plants, so it should recover just fine. Be conservative in your watering & pls allow it time to recover. There is also a Sansevieria forum here at Houzz, so you can do more reading. PS: It's good you've got that Perlite in your mix; if you've got that well mixed & it's that much Perlite throughout, that should provide the good, fast drainage these plants require. So pls know you did get that part right.