The situation doesn't appear to be as simple as that. All we had so far are different tweets and articles claiming different numbers.
Not only Reuters.com, but also Investors.com, MarketWatch.com and Wall Street Jourrnal (wsj.com) reported analyst estimates of 432,000, all referring to "FactSet" as the source (apparently trusting it).
The company delivered around 36% more vehicles to customers in the first quarter than it did a year earlier.
www.wsj.com
Tesla deliveries hit a record in Q1, but fell short of views yet again
www.investors.com
Regardless of what Tesla Inc.'s first-quarter deliveries show in the coming days, analysts say the electric-vehicle maker is seeing strong demand.
www.marketwatch.com
Tesla Inc on Sunday posted record quarterly vehicle deliveries, but quarter-on-quarter sales growth was modest despite price cuts as rising competition and a bleak economic outlook weighed.
www.reuters.com
The Reuters article above from today mentions more specifically where the number 432,000 came from:
It also mentions that there have been analyst surveys with different results:
So in terms of what I am seeing so far, I'd think nobody lied, there just have been different compilations (maybe also from different times) that came to a different (average) result.
None of the tweets you quoted give us the information we'd need to determine which source is "better", if any, and even less do I find support for your claim that media was lying in this case. So far.
(By the way, I'm not sure it makes any real difference if analysts estimated 421,000 or 432,000.)