I really think bashing people for being upset with management is...

I really think bashing people for being upset with management is a bit rich.
Holders have absolute cause to be asking questions. When you run the company and make promises, you cop flak when you don't fulfill them in the timeframe you provide, that's the gig. 
Perhaps if they knew there was a parts problem and they weren't going to hit that timeline, it would be prudent to alert the market and explain why (this should've been done in late December). This would completely remove the doubts that people have. 
It's not so much that there is a parts delivery issue, it's the lack of communication which upsets people.

I hold, i bought in the mid 70's and am happy to hold as the potential upside is massive for a smallish play. This doesn't mean management are exempt from scrutiny though

Cheers
Steve