As per my opinion answer is no because the contribution of all authors are same in research then what is disadvantages to adding all authors names in article?
No. But the following practical factors should be considered wisely.
(1) All authors should have contributed to the research work. As number of authors increase the contribution is diluted or meager. I restrict to a maximum of four authors in our group publications.
(2) Some authors compel to add as coauthor just because they did one characterization part. They absolutely have no idea of the whole work. Assume if a manuscript has ten authors, can all authors be able to independently present the whole work say in a seminar or conference or interview etc? The answer is No in most of the cases.
(3) Universities across the globe follow different criteria to evaluate the actual contribution. Ex: universities in South Africa use the formula 1/no. of authors to calculate the contribution. More the authors, less will be the score during annual performance evaluation. Some universities use the formula 1 for first authors and 1/no. of coauthors for coauthors to calculate the contribution.
(4) Some coauthors might have received gift authorship for various reasons without any contribution especially the last and penultimate authors in such manuscripts.
(5) There is an acknowledgement section where all people who do not really qualify for authorship but helped in a research work can be listed.
Multiple authors are necessary in this increasingly complex world. Even in biblical times, 40 different authors from three continents, writing in three different languages, created the Bible. (Eldon Shaffer)