It would be easy to make mesh tubes with legs but I think the resistance could be super low. If you look at a notch coil it has wide cut outs down the length of the tube with only a few thin 'legs' holding it together -it is because there are only a few thin legs for the current to pass through that notch coils are 0.25 resistance despite being made from SS. With mesh every strand carries the current, and unlike a notch coil there are a lot of them. Regular mesh strips used in most current mesh atomisers are much longer than wide and there may be a couple of centimetres of material between the positive and negative posts - this extra length helps raise the resistance, but even so, many mesh strips of this type can be in the 0.13 to 0.15 range. If you make the mesh with fewer strands to raise the resistance you will reduce the wire to cotton coverage which in turn could reduce the amount of vapour being produced and mess up the flavour advantage. If a 'sparser' mesh was formed into a circle it could also be very fragile if you try to pull a wick through it, particularly if you have to wick tight to avoid hot-spotting If you make a tube with legs to fit a regular atomiser it will have to be short enough to fit between the posts, which means it could be half of the length of an average mesh strip used in a standard mesh atomiser, so half the resistance, and you could have problems finding any regulated mods that fire that low. And using half the length of mesh would result in half the vapour assuming it is a standard width of mesh curved to make a 3mm ish coil.
It would probably work well if it was used in dual coil mode in a series atomiser as that would resolve any low resistance issues - but most manufacturers like to release an atomiser to go with new coils to make a profit on both - Wismec Theorem/Notch coils, Dead Rabbit R RTA for the flat mesh with legs that were also used in the Nest RDA for example. One potential issue for them is series atomisers generally aren't big sellers so it could be a gamble releasing one to use with their coils - and as these coils could be used in any existing series atomiser so if you already have one you like there is little incentive to buy another.
Another issue is many vapers have strong opinions about what is a reasonable resistance to vape at - and suggesting using coils that are way below 0.10 probably wouldn't be considered by most of us. I know they would be safe on a regulated mod, and I like experimenting, but I would still follow through at the prospect of vaping on a James Bond build.