Sure but why include that if a text processor is too much for the board? To display static images or demoscene visualisations?
If it's hardware accelerated it could still display that fine. I'm sure there are older games that could indeed run in 4k60fps
It will probably display video at those resolutions and refresh rates just fine, so it could be used for improvised commercial displays like a TV at a conference looping some information, for example.