Its a bit like Shrödingers cat - untill either side is "proven", neither side is definitively correct so both are plausible/true.
If you assume its a tech limitation, you restrict yourself from looking into alternative routes by default.
There's a variety of options/theories open right now.
Ranging from "they purposefully chose limited hardware" to "its a software limitation".
So far there have been several people come up with potential solutions by looking at the hardware. Indicating that there really shouldn't be a practical reason why there is a 10 game limit (and thus its there by design/choice.)
There's a video of someone that got an 11th game working on one of these cards.
And there's someone that claims to have a way to 'wipe' the 10-limit list (but will reveal this 'tomorrow').
The reality being - we just don't know for sure yet either way. And everyone is far too eager to see how the cards will fall.