It doesn't have native VGA output (missing HW) which is the only output that matters in a number of industrial (and server!) applications. Yes, there's HDMI or DP dongles that output VGA but they are janky and unreliable compared to just using a 710 or 730. And it's more than fast enough for basic Windows and likely sold cheaper (even before the whole "not needing a dongle").
There are actually 1030 cards with the HDMI/DP to VGA converter integrated on the GPU so they can have a "genuine" VGA output, these do work better than using a dongle but these starts at several times the price of a 710/730. Which is why these will probably be made long after 1010/1030 is but a memory.
The only reason it's not a much bigger market is that pretty much all servers have VGA outputs via the graphics built into the IPMI BMC (usually from ASPEED) which provides the remote management (power control, remove KVM and other out-of-band management).
Even brand new top of the line servers often has either VGA only or VGA with "option" (extra cost) to add mini-DP or something else modern (look at the spec sheet for say a Dell R7715 if you don't believe me, 5th gen EPYC, up to 40 EDSFF (PCIe) for storage, up to 6TB RAM and... VGA).