I can tell you that his "halo info" contains some red hot fanboy nonsense.
And I can tell you this: What was said about Halo in this blogpost is what I expect at least.
There is no fanboy wish really.. making the E3 level from back then now playable shouldn't be that hard.
Just focus your resources 343 dammit. Get rid of experimenting with AAs in Halo 5, just throw them out, bam people have more time, do the damn level
And if you meant the included MP : If H2A has no MP, don't bother, don't release it, even if it is H5's beta or a revamp of H4's multi: Don't bother, don't release it. Everything else will be a disappointment.