Technology did speed things up - the productivity has significantly increased. It's now possible with very limited knowledge, resources and time to create games that would have taken teams of experts years in the past. Think Super Mario on the NES ; it's now possible for a single person to create something better using modern software. Of course this example is a bit extreme and we usually want to do "more", but this in itself proves things are moving forward.
If stability is the key, focus on mature platforms and technologies ; though while this mitigates the risk of "innovation" this also adds the risk of "obsolescence"
I would argue that with progress of technology, everything becomes more and more loose, as less and less tight, and mario on nes is a great example, as there has yet to be a game made in c2 as tight as mario was for example . Even new smb games are not as tight as original. I played both fairly recently.