[survivorBias]

https://de.wikipedia.org/wiki/Survivorship_Bias

More often then not, the front end devs responsible for the app are not very good with "normal" web frontends - so they sabotage the competition, to reduce work. Also, web pages, could be repackaged into Apps by others leeching from the products attention.

[jollygoodshow]

Its typical to have a different set of engineers responsible for the web app. Certainly the case if you're not a tiny startup.

Sabotage feels pointless given you're still competing against other native apps. Also I don't even know how you would 'sabotage' the competition, your average app engineer doesn't moonlight as a blackhat hacker.