SoFi Stadium Insists it Checked Vax Cards at BTS Concert

SoFi Stadium seemed a little too easy to slip into ahead of a big BTS concert -- so much so that many felt COVID protocols were being broken ... even though the venue refutes that.

The Korean pop band performed Saturday at the arena in L.A., and as the gates opened for ticketholders ... some say they saw laxed screenings by security and other personnel, which they believe also meant vaccination cards weren't being checked or enforced.

Ditto for bags ... tons of people online, who presumably were there, claim nobody was taking a look at anyone's personal belongings.

There's some video evidence that appears to support that, at least on the surface. As you can see -- a steady stream of fans are trickling in past security checkpoints ... and there doesn't seem to be much stop-and-go movement, it's all just go.

Of course, this drew some criticism and concern -- as SoFi's policy for entry is that you either present proof of vaccination or a negative COVID test taken within recent days. Naturally, the Omicron variant is at the forefront of everyone's minds too.

On their end, SoFi tells TMZ ... "The safety of our guests, staff and the artist are always our number one priority, and we coordinated with law enforcement to temporarily streamline guest entry at last night's show. Tonight, we will have increased security and guest entry points and will begin vaccination verification even earlier in the entry process."