Impressive, but two different perspectives. Look at it this way, Virtu has always been a high-frequency proprietary trading operation (one that revenue growth has stalled, mind you). The KCG that was bought by Virtu, is essentially Dan Coleman's vision, he tried to get KCG to operate less as a prop-trading operation, and more as a platform provider, research / trading algo / quant analytics, etc. Of cos once Virtu bought KCG, all of these other "platforms" will be shutdown other than low-latency trading platform, of cos it makes sense.
I know plenty of horror stories about Knight's technology platform, so it is not surprising that it is pretty garbage. But I am surprised that KCG has not just tossed the bulk of it, and replaced it with Getco's own in-house variant, well, the fact that most of old Getco staff left after cashing out post KCG merger didn't help I guess.