Not saying you shouldn't be excited for your offensive line, but that's not a particularly large group by FBS standards. According to an article I found from last summer, that's basically an AVERAGE-sized OL in the Pac-12 … and considerably smaller than Oregon's line. Here's the article if you care to see for yourself.
https://crescentcitysports.com/size-...nemen-of-2019/
And for what it's worth, Oregon allowed 3.3 yards per carry last year against a schedule including some tough, physical running teams like Wisconsin, Utah, Washington, Stanford, etc. And this defensive front only lost a few contributors from the 2-deep. Perhaps more importantly, the secondary returns everyone from what was an excellent group, so they'll be able to commit extra guys in the box.