If we make this concession, then all the video formats with support from Big Software will continue to be covered by patents and no one will be able to ship a free GNU/Linux system which can play the videos that are being made. "Missing features" in the default install is possibly the biggest thing currently holding back free software.
In my memory, the amendment that gained support from the European Commission in 2005 and made the pro-swpat camp nervous was a patents-can't-block-interop amendment:
The anti-swpat camp was considering this because patents on standards are such a big problem. There was disagreement over whether to go for this compromise, and it went to the wire. On one side, it would be a great victory, but on the other it might not be ambitious enough to do justice to the years of work done by the anti-swpat campaigners. But a little less than 24hrs before the vote it became fairly certain that the whole thing would be rejected.
I'd focus more on ensuring RMS's proposal is broad enough (the "general-purpose hardware" has to include wearables).