recent work...
OK,
you're up with recent work.
A summary for those who aren't...
1) 13.8 Mj is still ~the limit for a brief D-burning star
2) smaller stars, even down to our own Jupiter may have fully 5-10% of their heat budget supplied by "minor" D-burning.
3 This "minor" D-burning is really important to planetary heat budget and internal structure...
4) ...but does not make a "planet" into a "star".