I advise searching for other alternative sources of rich phosphorous natural seeds like flax seed, oats, barley, sunflower seeds, sesame seeds, etc., as it is easily bioavailable, echo-free and safe to birds and end user.
Both forms of phosphorus- inorganic like Aliphos and organic from plants are important. Organic (from phytates ) form is now highly "extracted" by using phytase. It gives quite important dose of dietary phosphorus we need in feeds. But usually is not enough and we add usually few kg/t feed inorganic phosphorus (eg.broiler feed). Different situation we have in countries using MBM or even just bone meal; then inorganic could be excluded (using phytase, of course).
Other problem-the definition of digestible, available, obtainable, absorbed... Even in the above article we have "... highest phosphorus digestibility/availability in poultry amongst all dicalcium phosphates on the market: 82%! ..." What 82%? digestibility or availability. It's not the same, but often mixed definition leading to mistakes in feed. I know cases where the need is taken from "Guide" often as available but calculation with phytase matrix and components description taken as digestible. Wrong "mixture" leading to imbalance of Ca/P.
Just we need both forms but with proper value of available (usually poultry feeds) or digestible (pigs) phosphorus. The definition problem still creates problems.
Dr. Piotr Stanislawski the value mentioned in the article was digestibility and it was measured in 2 trials in poultry (2015 and 2017) run at Wageningen University following WPSA protocol. Fully agree that definitions create confusion, but digestibility allows to formulate in a more accurate way. Using availability in inorganic feed phosphates determines almost no differences in different sources, which is a mistake. MCP is more digestible than DCP (80% vs 60%) and DICAL+ (new Aliphos dehydrate DCP) is more digestible than DCP and a bit higher than MCP.