As previously commented the lack of the inductor is probably not important.
Some time ago I modified one of the “8W” amplifiers so that I could test each amplifier chip on its own. Connecting directly to each chips input and output, bypassing the input and output combining circuitry and essentially testing as shown in the data sheet. The results for gain and output power for each chip were very close to the data sheet figures. So I came to the conclusion that the poor performance was down to the input and output combining circuitry and rf switching. I didn’t investigate any further as I no longer needed to use the amplifier.