This is not new info.
My thing on it is not to worry. IMO this is a Kromer thing. He has a longstanding thing with wanting certain types at guard and he puts more emphasis on guard in a lot of ways than tackle.
I just see it that of the 2, Hav is the more advanced player since he came out of a pro system in Wisconsin. Some people are misjudging Hav IMO because he played hurt for a good portion of last year (to the point where people were remarking he was playing on one good leg). But personally I like the idea of a right side like that. This is going to be a big line.
We have seen 6.6 and 6.7 guards have success in the NFL.