Having been a software engineer and gone on to do a MBA, none of what was taught for the degree reflected the attitude that you're describing. At no time did anyone tell us to ignore our prior experience - rather we were told that that our prior experience plus a business education would be valuable to future employers (which it is).
There was no expectation of being "air dropped" into an industry, and in fact, industry recruiters looked for candidates who already had prior experience when picking students for interviews and hiring. The students who had no relevant experience for the industry they were recruiting for (e.g. ex-Peace Corps or mgmt consultant looking to transition to tech or industry in general) were the ones who struggled to find roles. Your assumptions about what an MBA education entails are incredibly far off the mark.
There was no expectation of being "air dropped" into an industry, and in fact, industry recruiters looked for candidates who already had prior experience when picking students for interviews and hiring. The students who had no relevant experience for the industry they were recruiting for (e.g. ex-Peace Corps or mgmt consultant looking to transition to tech or industry in general) were the ones who struggled to find roles. Your assumptions about what an MBA education entails are incredibly far off the mark.