This is literally the definition of losing market share.
Be it because you have fewer customers or because more customers are in the market but buying other options, your share of the market is now smaller. It doesn’t always mean you’re losing revenue but it is a sign that you’re losing an advantage
"72 percent in January-February of 2022 to 58 percent in the same time this year" -> At this rate they'll have 0 market share in under 5 years time!
You claim market share is significant. I'm saying it's not.
If Tesla had 100% market share, they wouldn't be able to produce the cars for people. It's a silly metric in that it doesn't accommodate for what a manufacturer is capable of.
Their market share being smaller is thus, not important as the parent commenter pointed out their factories are pumping out cars full throttle and there's still wait lists for their products.
When the market is saturated with products, a metric like market share, customer happiness/retention, brand loyalty etc become more important. For now it's not as they were literally the only significant player for the past 5 years mass producing EVs.
Be it because you have fewer customers or because more customers are in the market but buying other options, your share of the market is now smaller. It doesn’t always mean you’re losing revenue but it is a sign that you’re losing an advantage