I don't think technology is the main issue here.
AMB dominate the market. if the new system don't compatible with AMB system no one will use it because people have to buy a new one for the few tracks that use new system and most people won't do it.
similar to linux system, it has come out several years already and ask yourself how many of you even try to install it if not using it. same reason, compatibility and people get used to one system and refuse to try new thing.
also even if a system want to be AMB competible. without authorization of AMB, the developer of new system might get sued.
unless the whole community works together against AMB in which not gonna happen. their price will still rise and no other system can be develop or gain more market share
personally I don't race and don't have one. the technology don't justified the price regardless whatever features they add (we just need it to count lap
Edited: Oopps I didn't notice someone is try to make a change with PTX system, hopefully he can blow some new wind into PT market