aka network-centric warfare. you can make reasonable use out of other bradley's sensors as well, and it works even better in air, with radars and such. you're forgetting about jammers and some other EW, and also, T90M team missed the first shot (and were fucked from that point on)
ukrainians are using drones as artillery spotters (for mortars, howitzers, AGLs, even for tanks when used as howitzers) since forever by now. more professional drones like MQ-9 or Bayraktar can carry laser designator, i guess putting one on a mavic is a little bit too much tinkering and too risky
tanks will go on. tanks are still pretty good at doing things only tanks can, so until someone invents something that does tank things but is not a tank (tank drone maybe?) i'd instead expect another layer of countermeasures like per-vehicle jammers