No mention that the coin was ninja launched and close to 50 blocks (with the highest rewards) were insta-mined BEFORE the announcement was made. That is NOT 'normal nowadays'. Normally the coins with the lowest diff at the start go to solo-miners that get setup the quickest and NOT pools like this suggests. Pools usually take at least a couple of minutes AFTER the coin is released and that is with an announcement made well in advance, not a ninja launch like this was. Many coins will also start with the lowest block rewards at the start to avoid insta-mining, this is the opposite of what this coin has done. The insta-mining on this coin began BEFORE and after the announcement was made. Which make this an insta-mine SCAM coin with the largest rewards going to the 50 blocks mined BEFORE the release.
is it possible to see somewhere how many coins were made in the first 50 blocks
50 x 125,000 = 6,250,000 + the '0.5% premine' that is highlighted in the OP.
The announced premine is blocks 1-12 (1.5 million SHIBE, 0.5%). But you should note that the pool that mined block 13 (the first non-premine block), still before the announcement time of course, actually mined all the blocks from 13 to 90 (78 blocks, 8.75 million SHIBE) and 75% of the following blocks up until block 222 (9.7 million SHIBE). It was only then that other pools started getting a decent percentage of the blocks. So the dev team (that presumably got all or a fair chunk of that pool's mined blocks) hold quite a few million coins, ready to dump when the time is right.