100%
I don't believe it's a detraction, or even a distraction. I believe it's a fact.
First you search for pings..done...almost a miracle any were found at all
then you seek to locate the pinger on the seabed using the pings...in progress
This requires narrowing the search area...in progress, down from 30,000 square miles at one point to 500 square miles at present
At 3 miles deep in wild ocean waters, given the way sound happens in water, given thermoclines, etc...this isn't an easy task
When the pings stop, and they will soon because batteries DO give out after a while, a radar/visual search is the only thing left
This search is not only 3 miles deep but the bottom there is covered in silt, sometimes over 30 feet deep.
then, let's assume you know exactly where the plane is and that it's not broken open...now how do you get in there and remove two pingers and bring them back to the surface using robots...in the dark with silt obscuring everything. That's hard to do remotely by robot control, even if it were simply in the bottom of the Mississippi river.
You know, if we get over the ineptness of the initial way this was handled, perhaps there is no conspiracy involved in reporting that this task is going to take a while and be expensive...
What's the going odds that as they detract us for a few days/week with "We've detected pinging and are closing in"; shifts to "We need to bring in special sonar/ submersibles to look closer, that's going to take a while"; shifts to "Aw dang it!, the black box batteries must be dead, we can't find anything!" ? - 50/50?