I don't know anything about that seed, the size and or what requirements are for planting it, just that its similar to wheat. I plant oats by broadcasting, and followed by using a disc harrow, set so the gangs are not cutting aggressively, this covers the seed, and I get good germination, mainly for grasses, fall food plots.
The same field I plant part of, has in the past been planted in oats that were broadcast, followed by a the cultipacker, the stand did produce a good yield. However, I think from what I saw, more seed is used and germination is not as good, meaning wasted seed is observed on top, and though oats will grow that tap root and it will sink into the soil if conditions are right, some of it is waste using this method, all depends on weather. In this case, I think his disc or harrow, was too aggressive, so it was just packed after. I have good results using a small 3 pt disc, almost looks drilled in, as a most of the seed ends up in furrows and at perfect depth, remaining seed is in-fill between, so for forage grass its fine, very possible excess population for a grain crop, technically.
Depending on what you are doing, you may want to calculate, and set the broadcast spreader accordingly, allowing for some waste, on top of the ideal population needed. You can calibrate it check coverage on a tarp, calculate the seed rate, adjust accordingly, you can certainly waste a of of seed quickly with one of these if not careful.
Same field using a JD 8300 drill planting oats, 3 bushels per acre, obviously a trench is opened, seed dropped to depth with fertilizer, soil closed, then packed with the cultipacker, produces just fine, does not waste seed, always produces a good stand, populated correctly, yield was great etc. Its plainly the better choice for many reasons, but both methods do work fine, the drill is obviously the preferred method for a long time for grain producing crops.