People in this industry use OpenPGP because it's flexible and amendable to almost any usecase you can think of. "Better solutions" are usually indeed better but are also so specialized for their purpose to the point that they can't be easily used for any other purpose.
OpenPGP is used to secure everything from simple messages and email to authenticating OS updates for most servers today.
Should they use something more specialized now that it exists? Sure, but that an argument for PGP not against it; PGP is useful in situations where no specialized solutions exist or are inadequate.
Until something comes along that can cover every situation where OpenPGP is useful, I can't see people stop using it (much to the dismay of the 5 vocal crptologists that keep arguing against it).
OpenPGP is used to secure everything from simple messages and email to authenticating OS updates for most servers today.
Should they use something more specialized now that it exists? Sure, but that an argument for PGP not against it; PGP is useful in situations where no specialized solutions exist or are inadequate.
Until something comes along that can cover every situation where OpenPGP is useful, I can't see people stop using it (much to the dismay of the 5 vocal crptologists that keep arguing against it).