what is "umpiring" becoming.....

[Rog]

The dictionary defines it as: judge, referee, arbiter, arbitrator, mediator, moderator.
Is it a vocation, i.e. trade, profession, calling, employment, field, job, occupation, work, art, business, career, discipline, gig, labor, line, livelihood, pursuit, role, schtick, specialty, task.
If you called a licensed electrician to your home to rewire your home, they would expect to do the job according to current standards and/or codes. As would the licensing bureau and insurance industry.
Would you really want this person to modfy the standards/codes just because you are paying the bill?
In that same vain, baseball has a set of rules with current interpretations which umpire's try to learn and understand and apply to todays games.
But, with the onslaught of modified rules, are umpire's who follow these modifications contributing to the lack of understanding and the proper application of the current legitimate rules by players, coaches and fans alike?