Yes. This is precisely why I have resisted deciding to teach.
Teachers in my local tango scene include a good number of genuine career dancers who've graduated from dance academies, earned a BFA or even an MFA in dance, had tenures with acclaimed dance troupes and companies, etc. It's almost all in ballet and contemporary, and almost none in AT . . . but at that level, "dance is dance." Their years of professional – not hobbyist or casual social – experience vary, but "10 to 30+ years, on average around 20 years" would be fair. My coach, for instance, graduated from a ballet academy, toured with both a circus and a traveling tango show for decades, founded tango schools in two countries, and has been a tango instructor for close to 35 years, on top of being a highly certified Pilates and yoga instructor.
Next to that, "social dance guy for 12 1/2 years" doesn't cut it. Sure, those 12 1/2 years have been intensive and have involved hundreds of hours a year of lessons, drills, and practice, at one point reaching the pitch of a part-time job and even becoming a part-time job as a junior assistant. But that's nothing next to the real teachers here . . . I couldn't fake it anywhere outside of a village of a few hundred non-dancers. Although I am pursuing formal apprenticeship as a teacher, that's for self-fulfillment – to help me structure and put words to things I do intuitively – and I don't seriously see myself teaching, ever.
And yet there are people who've followed an arc similar to mine who have decided – after 10, or just 5, or as few as 3 years as social dancers – to call themselves tango teachers. These "Temu tango teachers" are doing the real ones no favors.