I share your concerns here, but there are a few things to consider.

The Orange Pill platform in particular is mostly reaching for an audience that has little, if any, understanding of bitcoin. It would, consequently, probably be expecting too much for people to intuitively understand a price denominated solely in sats when all they have experienced prior is a world swamped in USD fiat. I would hope that this convention would go away in the future though and is only being used as a learning curve.

For Bitcoin events that are geared more to people that are more experienced and versed with technical details, I completely agree with you that the convention of pricing in fiat (especially with the annoying real-time conversion to btc to virtue-signal) is disingenuous and should be stopped.