Not really, the state of compilers pretty much sucked back then. GCC was the only real free compiler in the 80s and it wasn't really ready for prime time until the late 80s. You were paying (lots) of money for a compiler no matter what language you chose. And if you were targeting a new language the compiler was sure to suck.

Even in the late 90s Jamie Zawinski had a rant against C++. His argument for not using it? The compilers suck! C++ was the main "competitor" of Ada and it was a decade or more behind Ada through most of the time.

The "killer feature" of C++ against Ada (when it came to fighting against compiler maturity) was really that you could pretend to be writing C++ code but really just keep writing C-with-classes.

If Ada had put a modula or pascal compatibility mode in the language and produced a reference compiler that was based on a stable compiler in one of those languages, the history may have been different because people could have just written "PascAda" while waiting for the compilers to catch up.