Why do E visa holders have to undergo additional screening at BKK Airport?

There is a new procedure at Suvarnabhumi Airport (BKK) requiring E visa holders to undergo additional security screening, where they must wait for about 15 to 30 minutes for their visa validity to be checked. This has raised concerns among travelers about the efficiency and implications of such procedures, particularly as they may feel it suggests suspicion or a higher level of scrutiny is being applied to certain visa holders compared to others. Different opinions have been expressed regarding the necessity of this protocol, referencing that random selections for further screening might occur globally, and some commenters believe it may relate to broader security measures due to illegal activities. Others argue that this is not a standard procedure, as many travelers pass through without experiencing such delays.